Transformer magnetic core



FIG. 1 is a perspective view of the transformer magnetic core showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a plan view of the bottom thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation thereof;

FIG. 6 is a side elevation view thereof; and,

FIG. 7 is a side elevation view thereof opposite to the side elevation shown in FIG. 6. 

The ornamental design for a transformer magnetic core, as shown and described. 